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Finding the Fourth Proportional to 125,871.72, 173,704.14 and 69,283.50

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Solution

The fourth proportional to 125,871.72, 173,704.14 and 69,283.50 is: 95,611.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,871.72 : 173,704.14 = 69,283.50 : x
  2. Step 2: Convert to fraction form
    125,871.72/173,704.14 = 69,283.50/x
  3. Step 3: Cross multiply
    125,871.72x = 173,704.14 × 69,283.50
  4. Step 4: Simplify right side
    125,871.72x = 12,034,830,783.69
  5. Step 5: Solve for x
    x = 12,034,830,783.69/125,871.72
  6. Step 6: Final answer
    x = 95,611.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.